Patents by Inventor Kiyoo Watanabe

Kiyoo Watanabe has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Tubular part wall thickness measuring device
    Patent number: 4695729
    Abstract: A tubular part wall thickness measuring device includes a radiation source having a plurality of radiation sources disposed in a line. The radiation passes through a collimator to provide parallel radiation beams which pass transversely through a tubular part to a radiation detector. The length of the radiation source and the radiation detector are greater than the diameter of the tubular part to be measured so that the radiation passes through an entire section of the tubular part so that the average wall thickness of the tubular part can be determined from the amount of attenuation of radiation which is detected by the detector.
    Type: Grant
    Filed: May 27, 1986
    Date of Patent: September 22, 1987
    Assignees: Fuji Electric Co., Ltd., Fuji Facom Corporation and Kawasaki Steel Corporation
    Inventors: Asao Monno, Kiyoo Watanabe, Kazuyuki Kaneko